Document Number: 63116

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 16-Jul-07

3

VPR221Z (Z-Foil)

Ultra High Precision Z-Foil Power Resistor in TO-220

Configuration with TCR of ± 0.05 ppm/°C, PCR of

4 ppm/W and Load Life Stability of ± 0.005 % (50 ppm)

Vishay Foil Resistors

Note

1. Measurement error ± 0.001

Ω

Note

* For non-standard requests, please contact Application Engineering.

TEST OR CONDITION

MIL-PRF 39009

TYPICAL

ΔR

MAXIMUM

ΔR

Low temperature storage 24 hours at - 55 °C

± 0.3 % + 0.01

Ω

± 0.001 % (10 ppm)

± 0.002 % (20 ppm)

Dielectric withstanding voltage 300 V AC at Atm

± 0.2 % + 0.01

Ω

± 0.001 % (10 ppm)

± 0.002 % (20 ppm)

Dielectric withstanding voltage 200 V AC at Brm

± 0.2 % + 0.01

Ω

± 0.001 % (10 ppm)

± 0.002 % (20 ppm)

Insulation resistance

Ω

Ω

Low temperature operation

± 0.3 % + 0.01

Ω

± 0.002 % (20 ppm)

± 0.008 % (80 ppm)

Short time overload 5 x rated power for 5 seconds (in air)

± 0.3 % + 0.01

Ω

± 0.001 % (10 ppm)

± 0.002 % (20 ppm)

Moisture resistance + 65 °C to - 10 °C, 90 to 98 Rh, 10 days

± 0.5 % + 0.01

Ω

± 0.005 % (50 ppm)

± 0.015 % (150 ppm)

Terminal Strength

± 0.2 % + 0.01

Ω

± 0.001 % (10 ppm)

± 0.002 % (20 ppm)

Load life 8 W at + 25 °C, 2000 hours with heat sink

± 1.0 % + 0.01

Ω

± 0.005 % (50 ppm)

± 0.015 % (150 ppm)

Load life 1.5 W at + 25 °C for 2000 hours in free air

± 1.0 % + 0.01

Ω

± 0.005 % (50 ppm)

± 0.015 % (150 ppm)

High temperature exposure + 150 °C

± 1.0 % + 0.05

Ω

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

TABLE 4 - GLOBAL PART NUMBER INFORMATION

NEW GLOBAL PART NUMBER: Y1690420R220T9L (preferred part number format)

DENOTES PRECISION

VALUE

AER*

YR =

Ω

0 = Standard

9 = Lead (Pb)-free

1 - 999 = Custom

PRODUCT CODE

RESISTANCE TOLERANCE

PACKAGING

1690 = VPR221Z

T = ± 0.01 %

Q = ± 0.02 %

A = ± 0.05 %

B = ± 0.1 %

C = ± 0.25 %

D = ± 0.5 %

F = ± 1.0 %

L = Bulk Pack

FOR EXAMPLE: ABOVE GLOBAL ORDER Y1690 420R220 T 9 L:

TYPE: VPR221Z

VALUE: 420.22

Ω

ABSOLUTE TOLERANCE: ± 0.01 %

TERMINATION: Lead (Pb)-free

PACKAGING: Bulk Pack

HISTORICAL PART NUMBER: VPR221Z T 420R22 TCR0.2 T B (will continue to be used)

VPR221Z

T

420R22

TCR0.2

T

B

MODEL

TERMINATION

OHMIC VALUE

TCR

CHARACTERISTIC

ABSOLUTE

TOLERANCE

PACKAGING

T = Lead (Pb)-free

none = Tin/Lead

420.22

Ω

TCR0.2

T = ± 0.01 %

Q = ± 0.02 %

A = ± 0.05 %

B = ± 0.1 %

C = ± 0.25 %

D = ± 0.5 %

F = ± 1.0 %

B = Bulk Pack

6

904

0

R

2

2

Y1

T9

2

L

0